/// <summary>Method repeats supplied HTML template for each item in the list</summary>
/// <typeparam name="TViewModelItem">Type of view model item</typeparam>
/// <param name="viewModelItems">The list of view model items</param>
/// <param name="template">HTMLlayout to be repeated for each view model item</param>
/// <returns>Container tag</returns>
public virtual ContainerTag ForEach <TViewModelItem>(IEnumerable <TViewModelItem> viewModelItems, Func <TViewModelItem, ContainerTag, ContainerTag> template)
{
var parentContainer = new OperatorTag <IEnumerable <TViewModelItem> >(viewModelItems);
foreach (var viewModelItem in viewModelItems)
{
var itemContainer = new OperatorTag <TViewModelItem>(viewModelItem);
template(viewModelItem, itemContainer);
parentContainer.Children.Add(itemContainer);
}
return(parentContainer);
}
/// <summary>Method return container tag with assigned visibility dependant on the condition</summary>
/// <param name="condition">Boolean condition on which to decide whether to show nested tags or not</param>
/// <param name="Then">On TRUE condition, lambda returning the same container supplied as input parameter</param>
/// <param name="Else">On ELSE condition, lambda returning the same container supplied as input parameter</param>
/// <returns>Container tag</returns>
public virtual ContainerTag If(bool condition, Func <ContainerTag, ContainerTag> Then, Func <ContainerTag, ContainerTag> Else)
{
var container = new OperatorTag <TViewModel>(default(TViewModel));
if (condition && Then != null)
{
Then(container);
}
if (!condition && Else != null)
{
Else(container);
}
return(container);
}
/// <summary>Method return container tag with assigned visibility dependant on the condition</summary>
/// <param name="condition">Boolean condition on which to decide whether to show nested tags or not</param>
/// <param name="Then">On TRUE condition, lambda returning tag</param>
/// <param name="Else">On ELSE condition, lambda returning tag</param>
/// <returns>Container tag</returns>
public virtual ContainerTag If(bool condition, Func <TreeLeafTag> Then, Func <TreeLeafTag> Else)
{
var container = new OperatorTag <TViewModel>(default(TViewModel));
if (condition && Then != null)
{
var item = Then();
container.Children.Add(item);
}
if (!condition && Else != null)
{
var item = Else();
container.Children.Add(item);
}
return(container);
}